结构方程模型 (structural equation modeling,SEM)是一种建立、估计和检验因果关系模型的方法。它可以替代多重回归、通径分析、因子分析、协方差分析等方法,清晰分析单项指标对总体的作用和单项指标间的相互关系。
为何要用结构方程模型?
很多社会、心理研究中所涉及到的变量,经常不能准确、直接地测量,这种变量称为潜变量,如工作自主权、工作满意度等。传统的统计分析方法不能妥善处理这些潜变量,而结构方程模型能同时很好地处理这些潜变量及其指标。
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矩形是可视变量draw observed,椭圆形是潜变量draw unobserved
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B站资源【推荐视频】https://www.bilibili.com/video/BV1PW411E7kz?p=14
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